It's worth listening to what Luke Wroblewski (the designer who coined the term "mobile first") has to say about hamburger menus... <a href="http://uxim15.uie.com/videos/luke-wroblewski" rel="nofollow">http://uxim15.uie.com/videos/luke-wroblewski</a> (Jump to 26mins although the whole talk is excellent)
Please don't use hamburger menus on iOS.
<a href="http://blog.manbolo.com/2014/06/30/apple-on-hamburger-menus" rel="nofollow">http://blog.manbolo.com/2014/06/30/apple-on-hamburger-menus</a>
The most famous implementation of this specific effect is a couple of years old already: <a href="https://github.com/romaonthego/RESideMenu" rel="nofollow">https://github.com/romaonthego/RESideMenu</a>